The paper discusses implementation of material concepts such as toughness in testing and subsequently in design. These considerations are general enough to cover other material aspects than toughness and at the same time provide an explanation as to why it has proven so difficult to move from a relatively simple material, FRC, to structural design and application. Further, the paper discusses various concepts for materials testing and tries to characterize the requirements for a testing method, which can be used in practice to  characterize FRC in a simple yet flexible and meaningful way. The paper points to an already suggested testing method, which with a very simple and straight forward means of interpretation can yield fracture mechanical properties for both manual and design computerized FEM analysis. Finally, the paper summarizes some of the simple design models already available utilizing the fracture mechanical material characterization suggested in the paper